John Hinde Leffler Westerhout c1875

Hi, Trying to find information about the above person. He was born c1875 and married Daisy Kate Pharoah of Madras around 1900. He and Daisy moved to the UK in 1915 but according to immigration records John continued working in Malaysia till at least 1927 as 'port Health Officer' and gave his permanent residenceas F.M.S. I haven't been able to find either birth or marriage records for him. Any help appreciated. Liz